5,4′-dihydroxy-7,8,2′,3′-tetramethoxyflavone C19H18O8 structure – Flashcards

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

 
 Log Octanol-Water Partition Coef (SRC):
 Log Kow (KOWWIN v1.67 estimate) = 2.88

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
 Boiling Pt (deg C): 524.14 (Adapted Stein & Brown method)
 Melting Pt (deg C): 223.87 (Mean or Weighted MP)
 VP(mm Hg,25 deg C): 8.37E-013 (Modified Grain method)
 Subcooled liquid VP: 1.13E-010 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
 Water Solubility at 25 deg C (mg/L): 58.66
 log Kow used: 2.88 (estimated)
 no-melting pt equation used

 Water Sol Estimate from Fragments:
 Wat Sol (v1.01 est) = 44.768 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
 Class(es) found:
 Phenols
 Vinyl/Allyl Ketones
 Vinyl/Allyl Ethers

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
 Bond Method : 6.03E-018 atm-m3/mole
 Group Method: Incomplete
 Henrys LC [VP/WSol estimate using EPI values]: 7.028E-015 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
 Log Kow used: 2.88 (KowWin est)
 Log Kaw used: -15.608 (HenryWin est)
 Log Koa (KOAWIN v1.10 estimate): 18.488
 Log Koa (experimental database): None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
 Biowin1 (Linear Model) : 1.4673
 Biowin2 (Non-Linear Model) : 1.0000
 Expert Survey Biodegradation Results:
 Biowin3 (Ultimate Survey Model): 2.1716 (months )
 Biowin4 (Primary Survey Model) : 3.7504 (days )
 MITI Biodegradation Probability:
 Biowin5 (MITI Linear Model) : 0.8533
 Biowin6 (MITI Non-Linear Model): 0.6477
 Anaerobic Biodegradation Probability:
 Biowin7 (Anaerobic Linear Model): 0.8176
 Ready Biodegradability Prediction: NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
 Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
 Vapor pressure (liquid/subcooled): 1.51E-008 Pa (1.13E-010 mm Hg)
 Log Koa (Koawin est ): 18.488
 Kp (particle/gas partition coef. (m3/ug)):
 Mackay model : 199 
 Octanol/air (Koa) model: 7.55E+005 
 Fraction sorbed to airborne particulates (phi):
 Junge-Pankow model : 1 
 Mackay model : 1 
 Octanol/air (Koa) model: 1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
 Hydroxyl Radicals Reaction:
 OVERALL OH Rate Constant = 234.0134 E-12 cm3/molecule-sec
 Half-Life = 0.046 Days (12-hr day; 1.5E6 OH/cm3)
 Half-Life = 0.548 Hrs
 Ozone Reaction:
 OVERALL Ozone Rate Constant = 10.500000 E-17 cm3/molecule-sec
 Half-Life = 0.109 Days (at 7E11 mol/cm3)
 Half-Life = 2.619 Hrs
 Reaction With Nitrate Radicals May Be Important!
 Fraction sorbed to airborne particulates (phi): 1 (Junge,Mackay)
 Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
 Koc : 9.555E+004
 Log Koc: 4.980 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
 Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
 Log BCF from regression-based method = 0.674 (BCF = 4.722)
 log Kow used: 2.88 (estimated)

 Volatilization from Water:
 Henry LC: 6.03E-018 atm-m3/mole (estimated by Bond SAR Method)
 Half-Life from Model River: 1.879E+014 hours (7.828E+012 days)
 Half-Life from Model Lake : 2.049E+015 hours (8.539E+013 days)

 Removal In Wastewater Treatment:
 Total removal: 4.79 percent
 Total biodegradation: 0.12 percent
 Total sludge adsorption: 4.67 percent
 Total to Air: 0.00 percent
 (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
 Mass Amount Half-Life Emissions
 (percent) (hr) (kg/hr)
 Air 3.64e-007 0.773 1000 
 Water 11.4 1.44e+003 1000 
 Soil 88.4 2.88e+003 1000 
 Sediment 0.215 1.3e+004 0 
 Persistence Time: 2.62e+003 hr